#2F476B
Closest named color: Dark Grey Blue (#29465B). oklch(39.6% 0.068 258.3), rgb(47, 71, 107).
Aa
White text reads best on this color (9.39:1).
About this color
#2F476B is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.068 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.39:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #2F476B |
| RGB | rgb(47, 71, 107) |
| HSL | hsl(216, 39%, 30%) |
| OKLCH | oklch(39.6% 0.068 258.3) |
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 #2F476B | 9.39:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #2F476B | 2.23:1 | Fails | Lc 12.3 | Not readable |
| #2F476B text on white | 9.39:1 | AAA | Lc 91.6 | Preferred for body text |
| #2F476B text on black | 2.23:1 | Fails | Lc -10.8 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E2
oklch(80.9% 0.051 258.7)
-
Step 400
400
#81A2D4
oklch(70.7% 0.082 258.5)
-
Step 500
500
#618AC8
oklch(63% 0.105 258.4)
-
Step 600
600
#4873B5
oklch(55.5% 0.114 258.7)
-
Step 700
700
#39619C
oklch(49.2% 0.105 258)
-
Step 800
800
#2F4F7E
oklch(42.6% 0.087 257.9)
-
Step 900
900 (this color)
#2F476B
oklch(39.6% 0.068 258.3)
-
Step 950
950
#19273B
oklch(27% 0.042 257.3)
#2F476B 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) | #39496D | 0.016 |
| Deuteranopia (no green cones) | #31446A | 0.009 |
| Tritanopia (no blue cones) | #0E4F54 | 0.061 |
| Achromatopsia (no color) | #464646 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F476B
#2F476B
oklch(39.6% 0.068 258.3)
- #5A4216
#5A4216
oklch(39.6% 0.068 79.5)
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 #2F476B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Twilight Blue #0A437A ΔE 0.044
- Charcoal #264653 ΔE 0.044
- Light Navy #155084 ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.052
- Dusk Blue #26538D ΔE 0.060
- Dark Slate Gray #2F4F4F ΔE 0.061
- Cobalt #1E488F ΔE 0.061
Use #2F476B 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.