#657AFE
Closest named color: Cornflower (#6A79F7). oklch(63.2% 0.196 272.7), rgb(101, 122, 254).
Aa
Black text reads best on this color (5.76:1).
About this color
#657AFE is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.196 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.012 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #657AFE |
| RGB | rgb(101, 122, 254) |
| HSL | hsl(232, 99%, 70%) |
| OKLCH | oklch(63.2% 0.196 272.7) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #657AFE | 3.64:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #657AFE | 5.76:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #657AFE text on white | 3.64:1 | AA large text | Lc 63.7 | Content text, not long reading |
| #657AFE text on black | 5.76:1 | AA | Lc -38.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FD
oklch(93.5% 0.028 272.5)
-
Step 200
200
#CDD8FD
oklch(88.6% 0.052 272.2)
-
Step 300
300
#ACBDFF
oklch(80.9% 0.095 273)
-
Step 400
400
#8198FF
oklch(70.7% 0.153 272.5)
-
Step 500
500 (this color)
#657AFE
oklch(63.2% 0.196 272.7)
-
Step 600
600
#4F5EED
oklch(55.6% 0.213 272.7)
-
Step 700
700
#414CCE
oklch(49.1% 0.198 272.9)
-
Step 800
800
#3540A7
oklch(42.8% 0.164 272.7)
-
Step 900
900
#2D3884
oklch(37.8% 0.127 272.6)
-
Step 950
950
#1A214D
oklch(26.9% 0.081 272.9)
#657AFE with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #288DFF | 0.062 |
| Deuteranopia (no green cones) | #0080FB | 0.064 |
| Tritanopia (no blue cones) | #0099B0 | 0.169 |
| Achromatopsia (no color) | #868686 | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #657AFE
#657AFE
oklch(63.2% 0.196 272.7)
- #A58700
#A58700
oklch(63.3% 0.13 93.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #657AFE, closest first.
No curated palette has a color within ΔE 0.04 of #657AFE.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.012
- Soft Blue #6488EA ΔE 0.049
- Medium Slate Blue #7B68EE ΔE 0.051
- Clear Blue #247AFD ΔE 0.056
- Periwinkle #8E82FE ΔE 0.061
- Lavender Blue #8B88F8 ΔE 0.066
- Dodger Blue #1E90FF ΔE 0.069
- Dark Sky Blue #448EE4 ΔE 0.073
Use #657AFE in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.