#23293E
Closest named color: Oxford Blue (#1B263B). oklch(28.5% 0.04 271.5), rgb(35, 41, 62).
Aa
White text reads best on this color (14.40:1).
About this color
#23293E is a dark, muted blue. In OKLCH its lightness is 29%, its chroma 0.040 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.018 away. White text reads best on it, at 14.40:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.40:1 |
Values
| HEX | #23293E |
| RGB | rgb(35, 41, 62) |
| HSL | hsl(227, 28%, 19%) |
| OKLCH | oklch(28.5% 0.04 271.5) |
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 #23293E | 14.40:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #23293E | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #23293E text on white | 14.40:1 | AAA | Lc 101.1 | Preferred for body text |
| #23293E text on black | 1.45:1 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D3D9EB
oklch(88.6% 0.026 271.1)
-
Step 300
300
#B5C0E0
oklch(81% 0.047 270.4)
-
Step 400
400
#8F9ED0
oklch(70.6% 0.075 271.4)
-
Step 500
500
#7486C4
oklch(63.1% 0.096 271.1)
-
Step 600
600
#5D6FB0
oklch(55.6% 0.103 271)
-
Step 700
700
#4D5C98
oklch(49% 0.098 271.8)
-
Step 800
800
#3F4C7B
oklch(42.8% 0.08 271)
-
Step 900
900
#363F63
oklch(37.7% 0.063 272.4)
-
Step 950
950 (this color)
#23293E
oklch(28.5% 0.04 271.5)
#23293E 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) | #222B3F | 0.006 |
| Deuteranopia (no green cones) | #20293E | 0.005 |
| Tritanopia (no blue cones) | #1B2D30 | 0.036 |
| Achromatopsia (no color) | #2A2A2A | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23293E
#23293E
oklch(28.5% 0.04 271.5)
- #312912
#312912
oklch(28.4% 0.039 90.7)
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 #23293E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.018
- Space Cadet #2B2D42 ΔE 0.020
- Dark #1B2431 ΔE 0.031
- Gunmetal #293241 ΔE 0.032
- Jet #212529 ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.059
- Midnight Green #073B4C ΔE 0.061
Use #23293E 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.