#234172
Closest named color: Twilight Blue (#0A437A). oklch(37.9% 0.091 259.7), rgb(35, 65, 114).
Aa
White text reads best on this color (10.14:1).
About this color
#234172 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.091 and its hue 260°. 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 10.14:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.07:1 |
| White text | 10.14:1 |
Values
| HEX | #234172 |
| RGB | rgb(35, 65, 114) |
| HSL | hsl(217, 53%, 29%) |
| OKLCH | oklch(37.9% 0.091 259.7) |
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 #234172 | 10.14:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #234172 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #234172 text on white | 10.14:1 | AAA | Lc 93.3 | Preferred for body text |
| #234172 text on black | 2.07:1 | Fails | Lc -9.2 | 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
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A7C2EE
oklch(80.9% 0.069 260.1)
-
Step 400
400
#77A1E5
oklch(70.6% 0.11 259.7)
-
Step 500
500
#5488DD
oklch(63% 0.14 259.8)
-
Step 600
600
#3970CB
oklch(55.5% 0.153 259.9)
-
Step 700
700
#2B5EB0
oklch(49.2% 0.142 259.6)
-
Step 800
800
#254D8E
oklch(42.8% 0.117 259.7)
-
Step 900
900 (this color)
#234172
oklch(37.9% 0.091 259.7)
-
Step 950
950
#152642
oklch(27% 0.057 259.9)
#234172 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) | #2B4574 | 0.016 |
| Deuteranopia (no green cones) | #1E3E71 | 0.011 |
| Tritanopia (no blue cones) | #004C54 | 0.074 |
| Achromatopsia (no color) | #414141 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #234172
#234172
oklch(37.9% 0.091 259.7)
- #583C00
#583C00
oklch(37.8% 0.079 79.1)
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 #234172, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.021
- Marine Blue #01386A ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.047
- Light Navy #155084 ΔE 0.049
- Cobalt #1E488F ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.058
- Charcoal #264653 ΔE 0.060
Use #234172 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.