#1F293D
Closest named color: Oxford Blue (#1B263B). oklch(28.1% 0.04 263.6), rgb(31, 41, 61).
Aa
White text reads best on this color (14.55:1).
About this color
#1F293D is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.040 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.013 away. White text reads best on it, at 14.55:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.44:1 |
| White text | 14.55:1 |
Values
| HEX | #1F293D |
| RGB | rgb(31, 41, 61) |
| HSL | hsl(220, 33%, 18%) |
| OKLCH | oklch(28.1% 0.04 263.6) |
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 #1F293D | 14.55:1 | AAA | Lc -104.2 | Preferred for body text |
| Black text on #1F293D | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #1F293D text on white | 14.55:1 | AAA | Lc 101.3 | Preferred for body text |
| #1F293D 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
#D0D9EB
oklch(88.4% 0.027 264.4)
-
Step 300
300
#B1C1E0
oklch(80.9% 0.047 263.7)
-
Step 400
400
#88A1D0
oklch(70.7% 0.075 262.8)
-
Step 500
500
#6B89C4
oklch(63.2% 0.096 263.2)
-
Step 600
600
#5372B1
oklch(55.7% 0.105 263.5)
-
Step 700
700
#445F98
oklch(49.1% 0.097 264)
-
Step 800
800
#384E7B
oklch(42.8% 0.08 263.6)
-
Step 900
900
#304163
oklch(37.7% 0.063 263.4)
-
Step 950
950 (this color)
#1F293D
oklch(28.1% 0.04 263.6)
#1F293D 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) | #222A3E | 0.006 |
| Deuteranopia (no green cones) | #1F283D | 0.003 |
| Tritanopia (no blue cones) | #142D30 | 0.035 |
| Achromatopsia (no color) | #292929 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F293D
#1F293D
oklch(28.1% 0.04 263.6)
- #332711
#332711
oklch(28.1% 0.039 81.2)
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 #1F293D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.013
- Space Cadet #2B2D42 ΔE 0.026
- Dark #1B2431 ΔE 0.027
- Gunmetal #293241 ΔE 0.035
- Jet #212529 ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.054
- Midnight Green #073B4C ΔE 0.060
- Dark Blue Grey #1F3B4D ΔE 0.061
Use #1F293D 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.