#264379
Closest named color: Twilight Blue (#0A437A). oklch(39% 0.098 261.7), rgb(38, 67, 121).
Aa
White text reads best on this color (9.71:1).
About this color
#264379 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.098 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.021 away. White text reads best on it, at 9.71:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.16:1 |
| White text | 9.71:1 |
Values
| HEX | #264379 |
| RGB | rgb(38, 67, 121) |
| HSL | hsl(219, 52%, 31%) |
| OKLCH | oklch(39% 0.098 261.7) |
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 #264379 | 9.71:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #264379 | 2.16:1 | Fails | Lc 11.7 | Not readable |
| #264379 text on white | 9.71:1 | AAA | Lc 92.3 | Preferred for body text |
| #264379 text on black | 2.16:1 | Fails | Lc -10.1 | 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 900.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CADAF5
oklch(88.5% 0.041 260.9)
-
Step 300
300
#A7C1F1
oklch(80.8% 0.074 262.5)
-
Step 400
400
#77A0EA
oklch(70.7% 0.118 261.7)
-
Step 500
500
#5487E4
oklch(63.2% 0.151 261.4)
-
Step 600
600
#396ED2
oklch(55.6% 0.165 261.7)
-
Step 700
700
#2C5BB6
oklch(49% 0.153 261.9)
-
Step 800
800
#254B93
oklch(42.7% 0.127 261.7)
-
Step 900
900 (this color)
#264379
oklch(39% 0.098 261.7)
-
Step 950
950
#152645
oklch(27.2% 0.062 261.5)
#264379 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) | #2A487B | 0.016 |
| Deuteranopia (no green cones) | #1C4178 | 0.013 |
| Tritanopia (no blue cones) | #004F58 | 0.080 |
| Achromatopsia (no color) | #444444 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #264379
#264379
oklch(39% 0.098 261.7)
- #5A4000
#5A4000
oklch(39% 0.08 82.4)
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 #264379, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Cobalt #1E488F ΔE 0.037
- Light Navy #155084 ΔE 0.039
- Deep Sea Blue #015482 ΔE 0.051
- Marine Blue #01386A ΔE 0.053
- Dusk Blue #26538D ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.059
Use #264379 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.