#264C99
Closest named color: Cobalt (#1E488F). oklch(43.4% 0.134 262.5), rgb(38, 76, 153).
Aa
White text reads best on this color (8.15:1).
About this color
#264C99 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.134 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.021 away. White text reads best on it, at 8.15:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #264C99 |
| RGB | rgb(38, 76, 153) |
| HSL | hsl(220, 60%, 37%) |
| OKLCH | oklch(43.4% 0.134 262.5) |
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 #264C99 | 8.15:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #264C99 | 2.57:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #264C99 text on white | 8.15:1 | AAA | Lc 87.8 | Fine for body text |
| #264C99 text on black | 2.57:1 | Fails | Lc -14.3 | Not readable |
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 800.
-
Step 50
50
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CADAF7
oklch(88.5% 0.044 262.4)
-
Step 300
300
#A6C1F4
oklch(80.9% 0.078 262.9)
-
Step 400
400
#769FEE
oklch(70.6% 0.125 262.7)
-
Step 500
500
#5385E9
oklch(63% 0.16 262.7)
-
Step 600
600
#386DD7
oklch(55.7% 0.173 262.3)
-
Step 700
700
#2B5ABA
oklch(49.1% 0.16 262.5)
-
Step 800
800 (this color)
#264C99
oklch(43.4% 0.134 262.5)
-
Step 900
900
#223F78
oklch(37.8% 0.103 262.3)
-
Step 950
950
#142546
oklch(26.9% 0.066 262.3)
#264C99 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) | #1F559C | 0.024 |
| Deuteranopia (no green cones) | #004A97 | 0.024 |
| Tritanopia (no blue cones) | #005E6B | 0.105 |
| Achromatopsia (no color) | #4F4F4F | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #264C99
#264C99
oklch(43.4% 0.134 262.5)
- #694B00
#694B00
oklch(43.4% 0.089 82.2)
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 #264C99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.021
- Dusk Blue #26538D ΔE 0.030
- Light Navy #155084 ΔE 0.041
- Blueberry #464196 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.051
- Denim Blue #3B5B92 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.054
- Dark Slate Blue #483D8B ΔE 0.057
Use #264C99 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.