#1F293C
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.038 262.8), rgb(31, 41, 60).
Aa
White text reads best on this color (14.57:1).
About this color
#1F293C is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.038 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.012 away. White text reads best on it, at 14.57:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.57:1 |
Values
| HEX | #1F293C |
| RGB | rgb(31, 41, 60) |
| HSL | hsl(219, 32%, 18%) |
| OKLCH | oklch(28.1% 0.038 262.8) |
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 #1F293C | 14.57:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #1F293C | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #1F293C text on white | 14.57:1 | AAA | Lc 101.3 | Preferred for body text |
| #1F293C text on black | 1.44:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C1DE
oklch(80.8% 0.045 262.4)
-
Step 400
400
#89A1CE
oklch(70.7% 0.072 262.8)
-
Step 500
500
#6C89C2
oklch(63.1% 0.093 263.3)
-
Step 600
600
#5472AE
oklch(55.6% 0.1 263.3)
-
Step 700
700
#446095
oklch(49.2% 0.092 262.3)
-
Step 800
800
#384E79
oklch(42.6% 0.077 262.9)
-
Step 900
900
#304162
oklch(37.6% 0.061 262.9)
-
Step 950
950 (this color)
#1F293C
oklch(28.1% 0.038 262.8)
#1F293C 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) | #222A3D | 0.006 |
| Deuteranopia (no green cones) | #1F283C | 0.003 |
| Tritanopia (no blue cones) | #152D30 | 0.033 |
| Achromatopsia (no color) | #292929 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F293C
#1F293C
oklch(28.1% 0.038 262.8)
- #322712
#322712
oklch(28% 0.038 82.3)
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 #1F293C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.012
- Dark #1B2431 ΔE 0.025
- Space Cadet #2B2D42 ΔE 0.027
- Jet #212529 ΔE 0.034
- Gunmetal #293241 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.056
- Midnight Green #073B4C ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.061
Use #1F293C 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.