#2F4761
Closest named color: Dark Grey Blue (#29465B). oklch(39% 0.054 251.2), rgb(47, 71, 97).
Aa
White text reads best on this color (9.56:1).
About this color
#2F4761 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.054 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.013 away. White text reads best on it, at 9.56:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.56:1 |
Values
| HEX | #2F4761 |
| RGB | rgb(47, 71, 97) |
| HSL | hsl(211, 35%, 28%) |
| OKLCH | oklch(39% 0.054 251.2) |
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 #2F4761 | 9.56:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #2F4761 | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #2F4761 text on white | 9.56:1 | AAA | Lc 92.1 | Preferred for body text |
| #2F4761 text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CFDBE8
oklch(88.6% 0.022 250.2)
-
Step 300
300
#AEC3DA
oklch(80.9% 0.04 250.7)
-
Step 400
400
#83A4C8
oklch(70.7% 0.064 250.9)
-
Step 500
500
#648DBA
oklch(63.1% 0.082 251.4)
-
Step 600
600
#4A76A6
oklch(55.5% 0.09 251.7)
-
Step 700
700
#3B638E
oklch(49% 0.083 251.5)
-
Step 800
800
#315173
oklch(42.6% 0.068 251.1)
-
Step 900
900 (this color)
#2F4761
oklch(39% 0.054 251.2)
-
Step 950
950
#1A2837
oklch(27.1% 0.034 250.8)
#2F4761 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) | #3D4862 | 0.020 |
| Deuteranopia (no green cones) | #364360 | 0.014 |
| Tritanopia (no blue cones) | #194D50 | 0.046 |
| Achromatopsia (no color) | #454545 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4761
#2F4761
oklch(39% 0.054 251.2)
- #574023
#574023
oklch(39% 0.054 71.5)
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 #2F4761, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.028
- Dark Slate Gray #2F4F4F ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.053
- Twilight Blue #0A437A ΔE 0.056
- Dark Teal #014D4E ΔE 0.056
- Deep Teal #00555A ΔE 0.057
Use #2F4761 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.