#152F3B
Closest named color: Oxford Blue (#1B263B). oklch(29% 0.039 230), rgb(21, 47, 59).
Aa
White text reads best on this color (13.98:1).
About this color
#152F3B is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.039 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 13.98:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.50:1 |
| White text | 13.98:1 |
Values
| HEX | #152F3B |
| RGB | rgb(21, 47, 59) |
| HSL | hsl(199, 48%, 16%) |
| OKLCH | oklch(29% 0.039 230) |
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 #152F3B | 13.98:1 | AAA | Lc -103.6 | Preferred for body text |
| Black text on #152F3B | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #152F3B text on white | 13.98:1 | AAA | Lc 100.5 | Preferred for body text |
| #152F3B text on black | 1.50:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A3C7D9
oklch(80.9% 0.046 229.7)
-
Step 400
400
#6FAAC6
oklch(70.8% 0.074 229.5)
-
Step 500
500
#4594B7
oklch(63.1% 0.093 229.8)
-
Step 600
600
#1D7EA3
oklch(55.7% 0.102 229.4)
-
Step 700
700
#0B6A8C
oklch(49.2% 0.095 229.9)
-
Step 800
800
#115672
oklch(42.6% 0.079 231)
-
Step 900
900
#18475C
oklch(37.6% 0.062 231)
-
Step 950
950 (this color)
#152F3B
oklch(29% 0.039 230)
#152F3B 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) | #292E3C | 0.028 |
| Deuteranopia (no green cones) | #242A3B | 0.025 |
| Tritanopia (no blue cones) | #003233 | 0.027 |
| Achromatopsia (no color) | #2C2C2C | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #152F3B
#152F3B
oklch(29% 0.039 230)
- #3B261A
#3B261A
oklch(29.1% 0.038 50.5)
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 #152F3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Gunmetal #293241 ΔE 0.032
- Space Cadet #2B2D42 ΔE 0.035
- Dark #1B2431 ΔE 0.038
- Jet #212529 ΔE 0.041
- Midnight Green #073B4C ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.049
- Prussian Blue #1D3557 ΔE 0.053
Use #152F3B 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.