#23334C
Closest named color: Prussian Blue (#1D3557). oklch(31.9% 0.05 259.1), rgb(35, 51, 76).
Aa
White text reads best on this color (12.73:1).
About this color
#23334C is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.050 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.020 away. White text reads best on it, at 12.73:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.64:1 |
| White text | 12.73:1 |
Values
| HEX | #23334C |
| RGB | rgb(35, 51, 76) |
| HSL | hsl(217, 37%, 22%) |
| OKLCH | oklch(31.9% 0.05 259.1) |
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 #23334C | 12.73:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #23334C | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #23334C text on white | 12.73:1 | AAA | Lc 98.7 | Preferred for body text |
| #23334C text on black | 1.64:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAEF
oklch(88.4% 0.033 258.4)
-
Step 300
300
#AAC2E7
oklch(80.9% 0.059 259)
-
Step 400
400
#7DA2DB
oklch(70.7% 0.093 258.8)
-
Step 500
500
#5C8AD2
oklch(63.2% 0.12 259.1)
-
Step 600
600
#4172BF
oklch(55.6% 0.131 259.1)
-
Step 700
700
#335FA5
oklch(49% 0.123 259.3)
-
Step 800
800
#2B4E85
oklch(42.6% 0.1 259.1)
-
Step 900
900
#27416B
oklch(37.6% 0.079 259.6)
-
Step 950
950 (this color)
#23334C
oklch(31.9% 0.05 259.1)
#23334C 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) | #29354D | 0.012 |
| Deuteranopia (no green cones) | #25314B | 0.007 |
| Tritanopia (no blue cones) | #11383C | 0.043 |
| Achromatopsia (no color) | #323232 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23334C
#23334C
oklch(31.9% 0.05 259.1)
- #402F12
#402F12
oklch(31.8% 0.05 78.6)
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 #23334C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.020
- Gunmetal #293241 ΔE 0.020
- Space Cadet #2B2D42 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.026
- Midnight Green #073B4C ΔE 0.034
- Onyx #343A40 ΔE 0.045
- Oxford Blue #1B263B ΔE 0.051
- Marine #042E60 ΔE 0.051
Use #23334C 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.