#658FDD
Closest named color: Cornflower Blue (#6495ED). oklch(65.4% 0.126 262), rgb(101, 143, 221).
Aa
Black text reads best on this color (6.52:1).
About this color
#658FDD is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.126 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.026 away. Black text reads best on it, at 6.52:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.52:1 |
| White text | 3.21:1 |
Values
| HEX | #658FDD |
| RGB | rgb(101, 143, 221) |
| HSL | hsl(219, 64%, 63%) |
| OKLCH | oklch(65.4% 0.126 262) |
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 #658FDD | 3.21:1 | AA large text | Lc -64.7 | Content text, not long reading |
| Black text on #658FDD | 6.52:1 | AA | Lc 44.8 | Non-text elements, placeholder text |
| #658FDD text on white | 3.21:1 | AA large text | Lc 59.3 | Large or bold text, headings |
| #658FDD text on black | 6.52:1 | AA | Lc -42.5 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ABC1E9
oklch(80.8% 0.062 262.3)
-
Step 400
400
#7FA1DE
oklch(70.8% 0.098 261.7)
-
Step 500
500 (this color)
#658FDD
oklch(65.4% 0.126 262)
-
Step 600
600
#4570C3
oklch(55.6% 0.138 262.2)
-
Step 700
700
#375EA8
oklch(49.2% 0.127 261.9)
-
Step 800
800
#2E4D88
oklch(42.8% 0.105 262)
-
Step 900
900
#29406D
oklch(37.6% 0.083 262.6)
-
Step 950
950
#182640
oklch(27% 0.052 262)
#658FDD 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) | #7095E0 | 0.022 |
| Deuteranopia (no green cones) | #618ADB | 0.015 |
| Tritanopia (no blue cones) | #1EA0AC | 0.112 |
| Achromatopsia (no color) | #8F8F8F | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #658FDD
#658FDD
oklch(65.4% 0.126 262)
- #B6871E
#B6871E
oklch(65.3% 0.126 81.9)
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 #658FDD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.026
- Soft Blue #6488EA ΔE 0.030
- Dark Sky Blue #448EE4 ΔE 0.033
- Chefchaouen Blue #4895EF ΔE 0.036
- Faded Blue #658CBB ΔE 0.051
- Perrywinkle #8F8CE7 ΔE 0.056
- Lavender Blue #8B88F8 ΔE 0.067
- Dodger Blue #1E90FF ΔE 0.068
Use #658FDD 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.