#659FEA
Closest named color: Cornflower Blue (#6495ED). oklch(69.5% 0.127 255.4), rgb(101, 159, 234).
Aa
Black text reads best on this color (7.70:1).
About this color
#659FEA is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.127 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.028 away. Black text reads best on it, at 7.70:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.127) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.70:1 |
| White text | 2.72:1 |
Values
| HEX | #659FEA |
| RGB | rgb(101, 159, 234) |
| HSL | hsl(214, 76%, 66%) |
| OKLCH | oklch(69.5% 0.127 255.4) |
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 #659FEA | 2.72:1 | Fails | Lc -57.8 | Large or bold text, headings |
| Black text on #659FEA | 7.70:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #659FEA text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #659FEA text on black | 7.70:1 | AAA | Lc -49.2 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9FC3F4
oklch(80.8% 0.08 256.2)
-
Step 400
400 (this color)
#659FEA
oklch(69.5% 0.127 255.4)
-
Step 500
500
#3D8AE9
oklch(63.2% 0.162 255.4)
-
Step 600
600
#1371D7
oklch(55.6% 0.176 255.4)
-
Step 700
700
#015EBA
oklch(49.1% 0.163 255.4)
-
Step 800
800
#0A4D97
oklch(42.7% 0.136 255.7)
-
Step 900
900
#134178
oklch(37.7% 0.106 255.4)
-
Step 950
950
#0D2746
oklch(27.1% 0.066 254.6)
#659FEA 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) | #80A4ED | 0.034 |
| Deuteranopia (no green cones) | #6F97E8 | 0.022 |
| Tritanopia (no blue cones) | #00B0BA | 0.110 |
| Achromatopsia (no color) | #9D9D9D | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #659FEA
#659FEA
oklch(69.5% 0.127 255.4)
- #CA9033
#CA9033
oklch(69.4% 0.127 75.1)
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 #659FEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.028
- Chefchaouen Blue #4895EF ΔE 0.042
- Periwinkle Blue #8F99FB ΔE 0.058
- Dark Sky Blue #448EE4 ΔE 0.059
- Soft Blue #6488EA ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.065
- Dodger Blue #1E90FF ΔE 0.077
- Lavender Blue #8B88F8 ΔE 0.077
Use #659FEA 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.