#183952
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.3% 0.059 243.8), rgb(24, 57, 82).
Aa
White text reads best on this color (12.02:1).
About this color
#183952 is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.059 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.015 away. White text reads best on it, at 12.02:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.74:1 |
| White text | 12.02:1 |
Values
| HEX | #183952 |
| RGB | rgb(24, 57, 82) |
| HSL | hsl(206, 55%, 21%) |
| OKLCH | oklch(33.3% 0.059 243.8) |
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 #183952 | 12.02:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #183952 | 1.74:1 | Fails | Lc 0.0 | Not readable |
| #183952 text on white | 12.02:1 | AAA | Lc 97.3 | Preferred for body text |
| #183952 text on black | 1.74:1 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200
#CCDBE8
oklch(88.4% 0.024 244.2)
-
Step 300
300
#A9C4DC
oklch(80.8% 0.045 245.2)
-
Step 400
400
#7BA6CA
oklch(70.7% 0.07 244.3)
-
Step 500
500
#578FBC
oklch(63% 0.09 244.2)
-
Step 600
600
#3B79A8
oklch(55.6% 0.097 243.8)
-
Step 700
700
#2C6690
oklch(49.2% 0.09 243.1)
-
Step 800
800
#265375
oklch(42.7% 0.075 243.8)
-
Step 900
900 (this color)
#183952
oklch(33.3% 0.059 243.8)
-
Step 950
950
#162837
oklch(26.9% 0.037 244.9)
#183952 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) | #2E3953 | 0.027 |
| Deuteranopia (no green cones) | #263452 | 0.021 |
| Tritanopia (no blue cones) | #003F42 | 0.043 |
| Achromatopsia (no color) | #363636 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #183952
#183952
oklch(33.3% 0.059 243.8)
- #4B2F12
#4B2F12
oklch(33.3% 0.059 64.1)
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 #183952, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.015
- Prussian Blue #1D3557 ΔE 0.018
- Midnight Green #073B4C ΔE 0.019
- Gunmetal #293241 ΔE 0.036
- Marine Blue #01386A ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.045
- Onyx #343A40 ΔE 0.047
- Charcoal #264653 ΔE 0.048
Use #183952 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.