#37495F
Closest named color: Dark Grey Blue (#29465B). oklch(40% 0.044 253.8), rgb(55, 73, 95).
Aa
White text reads best on this color (9.20:1).
About this color
#37495F is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.044 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.022 away. White text reads best on it, at 9.20:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.28:1 |
| White text | 9.20:1 |
Values
| HEX | #37495F |
| RGB | rgb(55, 73, 95) |
| HSL | hsl(213, 27%, 29%) |
| OKLCH | oklch(40% 0.044 253.8) |
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 #37495F | 9.20:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #37495F | 2.28:1 | Fails | Lc 12.8 | Not readable |
| #37495F text on white | 9.20:1 | AAA | Lc 91.2 | Preferred for body text |
| #37495F text on black | 2.28:1 | Fails | Lc -11.2 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C2D6
oklch(80.8% 0.033 254)
-
Step 400
400
#8AA3C1
oklch(70.7% 0.052 253.2)
-
Step 500
500
#6D8CB2
oklch(63.1% 0.068 253.9)
-
Step 600
600
#55769E
oklch(55.7% 0.073 253.7)
-
Step 700
700
#456387
oklch(49.2% 0.068 253.6)
-
Step 800
800
#39516D
oklch(42.8% 0.055 252.9)
-
Step 900
900 (this color)
#37495F
oklch(40% 0.044 253.8)
-
Step 950
950
#1D2734
oklch(26.9% 0.028 255.2)
#37495F 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) | #414A60 | 0.015 |
| Deuteranopia (no green cones) | #3C465F | 0.011 |
| Tritanopia (no blue cones) | #294E50 | 0.039 |
| Achromatopsia (no color) | #484848 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37495F
#37495F
oklch(40% 0.044 253.8)
- #56442D
#56442D
oklch(40% 0.043 72.9)
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 #37495F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.022
- Charcoal #264653 ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.048
- Deep Teal #00555A ΔE 0.056
- Dark Teal #014D4E ΔE 0.058
- YInMn Blue #415A77 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #37495F 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.