#234EA6
Closest named color: Cobalt (#1E488F). oklch(44.7% 0.15 262.5), rgb(35, 78, 166).
Aa
White text reads best on this color (7.74:1).
About this color
#234EA6 is a dark, vivid blue. In OKLCH its lightness is 45%, its chroma 0.150 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.041 away. White text reads best on it, at 7.74:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | vivid (0.150) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.71:1 |
| White text | 7.74:1 |
Values
| HEX | #234EA6 |
| RGB | rgb(35, 78, 166) |
| HSL | hsl(220, 65%, 39%) |
| OKLCH | oklch(44.7% 0.15 262.5) |
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 #234EA6 | 7.74:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #234EA6 | 2.71:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #234EA6 text on white | 7.74:1 | AAA | Lc 86.4 | Fine for body text |
| #234EA6 text on black | 2.71:1 | Fails | Lc -15.7 | 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 800.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A2C1FA
oklch(80.9% 0.088 262.4)
-
Step 400
400
#709FF8
oklch(70.8% 0.141 262.3)
-
Step 500
500
#4B84F4
oklch(63.2% 0.178 262.2)
-
Step 600
600
#2F6AE3
oklch(55.6% 0.195 262.4)
-
Step 700
700
#2257C5
oklch(49% 0.181 262.5)
-
Step 800
800 (this color)
#234EA6
oklch(44.7% 0.15 262.5)
-
Step 900
900
#1D3D7F
oklch(37.6% 0.118 262.7)
-
Step 950
950
#12254A
oklch(27.1% 0.073 262.2)
#234EA6 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) | #0F59A9 | 0.029 |
| Deuteranopia (no green cones) | #004DA4 | 0.019 |
| Tritanopia (no blue cones) | #006372 | 0.117 |
| Achromatopsia (no color) | #535353 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234EA6
#234EA6
oklch(44.7% 0.15 262.5)
- #6D4E00
#6D4E00
oklch(44.6% 0.092 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 #234EA6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.041
- Dusk Blue #26538D ΔE 0.045
- Blueberry #464196 ΔE 0.053
- Sapphire #2138AB ΔE 0.055
- Light Navy #155084 ΔE 0.059
- Denim Blue #3B5B92 ΔE 0.059
- Blue Blue #2242C7 ΔE 0.060
- Light Navy Blue #2E5A88 ΔE 0.065
Use #234EA6 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.