#234A86
Closest named color: Cobalt (#1E488F). oklch(41.4% 0.11 258.8), rgb(35, 74, 134).
Aa
White text reads best on this color (8.76:1).
About this color
#234A86 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.110 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.017 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #234A86 |
| RGB | rgb(35, 74, 134) |
| HSL | hsl(216, 59%, 33%) |
| OKLCH | oklch(41.4% 0.11 258.8) |
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 #234A86 | 8.76:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #234A86 | 2.39:1 | Fails | Lc 14.3 | Not readable |
| #234A86 text on white | 8.76:1 | AAA | Lc 89.7 | Fine for body text |
| #234A86 text on black | 2.39:1 | Fails | Lc -12.5 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A8C2EB
oklch(80.9% 0.065 259.4)
-
Step 400
400
#79A2E0
oklch(70.7% 0.102 258.5)
-
Step 500
500
#5689D8
oklch(63% 0.132 258.9)
-
Step 600
600
#3B72C5
oklch(55.7% 0.142 258.5)
-
Step 700
700
#2D5FAA
oklch(49.1% 0.132 258.5)
-
Step 800
800 (this color)
#234A86
oklch(41.4% 0.11 258.8)
-
Step 900
900
#24416E
oklch(37.7% 0.085 258.9)
-
Step 950
950
#152641
oklch(26.9% 0.056 259.3)
#234A86 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) | #2D5088 | 0.022 |
| Deuteranopia (no green cones) | #1B4685 | 0.015 |
| Tritanopia (no blue cones) | #005861 | 0.087 |
| Achromatopsia (no color) | #4B4B4B | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234A86
#234A86
oklch(41.4% 0.11 258.8)
- #644500
#644500
oklch(41.4% 0.086 79.4)
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 #234A86, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.017
- Light Navy #155084 ΔE 0.020
- Dusk Blue #26538D ΔE 0.028
- Deep Sea Blue #015482 ΔE 0.034
- Twilight Blue #0A437A ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.050
- Blueberry #464196 ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.057
Use #234A86 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.