#2F4858
Closest named color: Dark Grey Blue (#29465B). oklch(38.8% 0.041 237.3), rgb(47, 72, 88).
Aa
White text reads best on this color (9.59:1).
About this color
#2F4858 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.041 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.012 away. White text reads best on it, at 9.59:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.18:1 |
| White text | 9.59:1 |
Values
| HEX | #2F4858 |
| RGB | rgb(47, 72, 88) |
| HSL | hsl(203, 30%, 26%) |
| OKLCH | oklch(38.8% 0.041 237.3) |
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 #2F4858 | 9.59:1 | AAA | Lc -96.4 | Preferred for body text |
| Black text on #2F4858 | 2.18:1 | Fails | Lc 11.8 | Not readable |
| #2F4858 text on white | 9.59:1 | AAA | Lc 92.2 | Preferred for body text |
| #2F4858 text on black | 2.18:1 | Fails | Lc -10.2 | 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
#E5EBEF
oklch(93.7% 0.008 236.6)
-
Step 200
200
#CFDBE3
oklch(88.5% 0.017 236.7)
-
Step 300
300
#AFC4D2
oklch(80.9% 0.03 237)
-
Step 400
400
#84A6BC
oklch(70.8% 0.049 236.8)
-
Step 500
500
#6590AB
oklch(63.2% 0.062 236.6)
-
Step 600
600
#4B7997
oklch(55.5% 0.069 238.3)
-
Step 700
700
#3C6681
oklch(49.1% 0.064 238.2)
-
Step 800
800
#325368
oklch(42.6% 0.052 237.7)
-
Step 900
900 (this color)
#2F4858
oklch(38.8% 0.041 237.3)
-
Step 950
950
#1A2832
oklch(26.9% 0.027 240.1)
#2F4858 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) | #414759 | 0.025 |
| Deuteranopia (no green cones) | #3B4358 | 0.022 |
| Tritanopia (no blue cones) | #1E4C4D | 0.032 |
| Achromatopsia (no color) | #454545 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4858
#2F4858
oklch(38.8% 0.041 237.3)
- #563F2F
#563F2F
oklch(38.9% 0.041 56)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #2F4858
These curated palettes and gradients contain exactly #2F4858. Open one to see the full color scheme around it.
Palettes
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.012
- Charcoal #264653 ΔE 0.016
- Dark Slate Gray #2F4F4F ΔE 0.032
- Charcoal Grey #3C4142 ΔE 0.039
- Dark Teal #014D4E ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.050
- Onyx #343A40 ΔE 0.051
Use #2F4858 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.