#2F4855
Closest named color: Charcoal (#264653). oklch(38.7% 0.038 231.7), rgb(47, 72, 85).
Aa
White text reads best on this color (9.63:1).
About this color
#2F4855 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.038 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.014 away. White text reads best on it, at 9.63:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.17:1 |
| White text | 9.63:1 |
Values
| HEX | #2F4855 |
| RGB | rgb(47, 72, 85) |
| HSL | hsl(201, 29%, 26%) |
| OKLCH | oklch(38.7% 0.038 231.7) |
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 #2F4855 | 9.63:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #2F4855 | 2.17:1 | Fails | Lc 11.7 | Not readable |
| #2F4855 text on white | 9.63:1 | AAA | Lc 92.3 | Preferred for body text |
| #2F4855 text on black | 2.17:1 | Fails | Lc -10.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE2
oklch(88.4% 0.016 233)
-
Step 300
300
#AFC4D0
oklch(80.8% 0.029 232.8)
-
Step 400
400
#85A6B8
oklch(70.7% 0.045 232.1)
-
Step 500
500
#6590A7
oklch(63.1% 0.058 232.3)
-
Step 600
600
#4B7A92
oklch(55.5% 0.063 231.7)
-
Step 700
700
#3C677C
oklch(49.1% 0.058 230.8)
-
Step 800
800
#325465
oklch(42.7% 0.049 231.2)
-
Step 900
900 (this color)
#2F4855
oklch(38.7% 0.038 231.7)
-
Step 950
950
#1A2930
oklch(27.1% 0.024 228.7)
#2F4855 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) | #424756 | 0.027 |
| Deuteranopia (no green cones) | #3C4355 | 0.023 |
| Tritanopia (no blue cones) | #204C4C | 0.029 |
| Achromatopsia (no color) | #454545 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4855
#2F4855
oklch(38.7% 0.038 231.7)
- #553F32
#553F32
oklch(38.8% 0.037 51.9)
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 #2F4855, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.014
- Dark Grey Blue #29465B ΔE 0.016
- Dark Slate Gray #2F4F4F ΔE 0.028
- Charcoal Grey #3C4142 ΔE 0.035
- Dark Teal #014D4E ΔE 0.041
- Deep Teal #00555A ΔE 0.047
- Onyx #343A40 ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.049
Use #2F4855 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.