#234BAA
Closest named color: Cobalt (#1E488F). oklch(44.4% 0.159 263.8), rgb(35, 75, 170).
Aa
White text reads best on this color (7.89:1).
About this color
#234BAA is a dark, vivid blue. In OKLCH its lightness is 44%, its chroma 0.159 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.045 away. White text reads best on it, at 7.89:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | vivid (0.159) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.65:1 |
| White text | 7.89:1 |
Values
| HEX | #234BAA |
| RGB | rgb(35, 75, 170) |
| HSL | hsl(222, 66%, 40%) |
| OKLCH | oklch(44.4% 0.159 263.8) |
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 #234BAA | 7.89:1 | AAA | Lc -91.6 | Preferred for body text |
| Black text on #234BAA | 2.65:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #234BAA text on white | 7.89:1 | AAA | Lc 86.9 | Fine for body text |
| #234BAA text on black | 2.65:1 | Fails | Lc -15.2 | 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
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C8DAFC
oklch(88.6% 0.051 263.2)
-
Step 300
300
#A2C0FE
oklch(80.8% 0.094 264.4)
-
Step 400
400
#709DFD
oklch(70.6% 0.149 264)
-
Step 500
500
#4B81FB
oklch(63% 0.191 263.8)
-
Step 600
600
#3067EA
oklch(55.6% 0.207 263.7)
-
Step 700
700
#2454CC
oklch(49.1% 0.193 264)
-
Step 800
800 (this color)
#234BAA
oklch(44.4% 0.159 263.8)
-
Step 900
900
#1E3C82
oklch(37.7% 0.124 263.9)
-
Step 950
950
#12244C
oklch(27% 0.078 263.8)
#234BAA 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) | #0058AD | 0.034 |
| Deuteranopia (no green cones) | #004BA8 | 0.019 |
| Tritanopia (no blue cones) | #006373 | 0.125 |
| Achromatopsia (no color) | #515151 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234BAA
#234BAA
oklch(44.4% 0.159 263.8)
- #6B4E00
#6B4E00
oklch(44.3% 0.091 83.8)
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 #234BAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.045
- Sapphire #2138AB ΔE 0.046
- Blue Blue #2242C7 ΔE 0.051
- Blueberry #464196 ΔE 0.054
- Dusk Blue #26538D ΔE 0.055
- Light Navy #155084 ΔE 0.067
- Majorelle Blue #3F37C9 ΔE 0.068
- Denim Blue #3B5B92 ΔE 0.069
Use #234BAA 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.