#256497
Closest named color: Peacock Blue (#016795). oklch(48.8% 0.104 246.7), rgb(37, 100, 151).
Aa
White text reads best on this color (6.27:1).
About this color
#256497 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.104 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.017 away. White text reads best on it, at 6.27:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.34:1 |
| White text | 6.27:1 |
Values
| HEX | #256497 |
| RGB | rgb(37, 100, 151) |
| HSL | hsl(207, 61%, 37%) |
| OKLCH | oklch(48.8% 0.104 246.7) |
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 #256497 | 6.27:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #256497 | 3.34:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #256497 text on white | 6.27:1 | AA | Lc 80.9 | Fine for body text |
| #256497 text on black | 3.34:1 | AA large text | Lc -20.9 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDBEB
oklch(88.4% 0.028 248.1)
-
Step 300
300
#A7C4E0
oklch(80.8% 0.051 247.5)
-
Step 400
400
#77A6D0
oklch(70.8% 0.08 246.2)
-
Step 500
500
#528FC4
oklch(63.1% 0.102 246.5)
-
Step 600
600
#3478B1
oklch(55.6% 0.112 246.9)
-
Step 700
700 (this color)
#256497
oklch(48.8% 0.104 246.7)
-
Step 800
800
#21527B
oklch(42.6% 0.086 246.9)
-
Step 900
900
#214463
oklch(37.6% 0.067 247.4)
-
Step 950
950
#14283A
oklch(26.9% 0.043 247.2)
#256497 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) | #4D6699 | 0.041 |
| Deuteranopia (no green cones) | #3D5B96 | 0.031 |
| Tritanopia (no blue cones) | #007076 | 0.075 |
| Achromatopsia (no color) | #606060 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256497
#256497
oklch(48.8% 0.104 246.7)
- #86520B
#86520B
oklch(48.7% 0.103 66.7)
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 #256497, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.017
- Denim #3B638C ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Ocean Blue #03719C ΔE 0.037
- Muted Blue #3B719F ΔE 0.046
- Mid Blue #276AB3 ΔE 0.046
Use #256497 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.