#39445D
Closest named color: Dark Grey Blue (#29465B). oklch(38.8% 0.045 266), rgb(57, 68, 93).
Aa
White text reads best on this color (9.72:1).
About this color
#39445D is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.045 and its hue 266°. 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 9.72:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.15:1 |
| White text | 9.72:1 |
Values
| HEX | #39445D |
| RGB | rgb(57, 68, 93) |
| HSL | hsl(222, 24%, 29%) |
| OKLCH | oklch(38.8% 0.045 266) |
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 #39445D | 9.72:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #39445D | 2.15:1 | Fails | Lc 11.4 | Not readable |
| #39445D text on white | 9.72:1 | AAA | Lc 92.5 | Preferred for body text |
| #39445D text on black | 2.15:1 | Fails | Lc -9.9 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D7
oklch(80.9% 0.033 264.4)
-
Step 400
400
#91A0C3
oklch(70.6% 0.054 266.8)
-
Step 500
500
#7689B4
oklch(63.1% 0.069 266)
-
Step 600
600
#5E72A0
oklch(55.5% 0.076 265.9)
-
Step 700
700
#4E6089
oklch(49.2% 0.07 265.7)
-
Step 800
800
#404E6F
oklch(42.6% 0.058 266.3)
-
Step 900
900 (this color)
#39445D
oklch(38.8% 0.045 266)
-
Step 950
950
#202635
oklch(27% 0.029 267.5)
#39445D 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) | #3C465E | 0.008 |
| Deuteranopia (no green cones) | #38435C | 0.004 |
| Tritanopia (no blue cones) | #2E494D | 0.040 |
| Achromatopsia (no color) | #444444 | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39445D
#39445D
oklch(38.8% 0.045 266)
- #4F4327
#4F4327
oklch(38.8% 0.046 87.1)
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 #39445D, 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 0.033
- Charcoal Grey #3C4142 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dark Blue Grey #1F3B4D ΔE 0.054
- Onyx #343A40 ΔE 0.054
- Prussian Blue #1D3557 ΔE 0.065
- Dark Teal #014D4E ΔE 0.065
Use #39445D 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.