#264587
Closest named color: Cobalt (#1E488F). oklch(40.5% 0.116 263.2), rgb(38, 69, 135).
Aa
White text reads best on this color (9.19:1).
About this color
#264587 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.116 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.015 away. White text reads best on it, at 9.19:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #264587 |
| RGB | rgb(38, 69, 135) |
| HSL | hsl(221, 56%, 34%) |
| OKLCH | oklch(40.5% 0.116 263.2) |
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 #264587 | 9.19:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #264587 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #264587 text on white | 9.19:1 | AAA | Lc 90.9 | Preferred for body text |
| #264587 text on black | 2.28:1 | Fails | Lc -11.4 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCDAF3
oklch(88.6% 0.038 262.1)
-
Step 300
300
#AAC1ED
oklch(80.9% 0.067 263.3)
-
Step 400
400
#7DA0E5
oklch(70.8% 0.109 263.3)
-
Step 500
500
#5C86DD
oklch(63% 0.14 263.5)
-
Step 600
600
#436ECB
oklch(55.5% 0.152 263.6)
-
Step 700
700
#345CAF
oklch(49.1% 0.14 262.9)
-
Step 800
800 (this color)
#264587
oklch(40.5% 0.116 263.2)
-
Step 900
900
#273F71
oklch(37.5% 0.091 263.3)
-
Step 950
950
#172542
oklch(26.8% 0.058 263.5)
#264587 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) | #224C89 | 0.020 |
| Deuteranopia (no green cones) | #0A4386 | 0.022 |
| Tritanopia (no blue cones) | #00545F | 0.093 |
| Achromatopsia (no color) | #484848 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #264587
#264587
oklch(40.5% 0.116 263.2)
- #5E4400
#5E4400
oklch(40.4% 0.083 83.7)
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 #264587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.015
- Twilight Blue #0A437A ΔE 0.032
- Light Navy #155084 ΔE 0.034
- Dusk Blue #26538D ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.048
- Dark Slate Blue #483D8B ΔE 0.049
- Blueberry #464196 ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.064
Use #264587 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.