#2F4E5F
Closest named color: Dark Grey Blue (#29465B). oklch(40.7% 0.047 233.6), rgb(47, 78, 95).
Aa
White text reads best on this color (8.83:1).
About this color
#2F4E5F is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.047 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.027 away. White text reads best on it, at 8.83:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.37:1 |
| White text | 8.83:1 |
Values
| HEX | #2F4E5F |
| RGB | rgb(47, 78, 95) |
| HSL | hsl(201, 34%, 28%) |
| OKLCH | oklch(40.7% 0.047 233.6) |
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 #2F4E5F | 8.83:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #2F4E5F | 2.37:1 | Fails | Lc 13.8 | Not readable |
| #2F4E5F text on white | 8.83:1 | AAA | Lc 90.1 | Preferred for body text |
| #2F4E5F text on black | 2.37:1 | Fails | Lc -12.1 | 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 800.
-
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
#D0DBE2
oklch(88.5% 0.015 235.4)
-
Step 300
300
#B0C4D0
oklch(80.9% 0.028 234.1)
-
Step 400
400
#86A6B8
oklch(70.7% 0.044 232.8)
-
Step 500
500
#6890A6
oklch(63.2% 0.055 232.8)
-
Step 600
600
#4E7A91
oklch(55.7% 0.06 232.1)
-
Step 700
700
#3F667C
oklch(49% 0.057 234.3)
-
Step 800
800 (this color)
#2F4E5F
oklch(40.7% 0.047 233.6)
-
Step 900
900
#2E4552
oklch(37.7% 0.036 233.8)
-
Step 950
950
#1B2830
oklch(26.9% 0.023 235.8)
#2F4E5F 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) | #464D60 | 0.031 |
| Deuteranopia (no green cones) | #3F485F | 0.027 |
| Tritanopia (no blue cones) | #185354 | 0.035 |
| Achromatopsia (no color) | #4A4A4A | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4E5F
#2F4E5F
oklch(40.7% 0.047 233.6)
- #5E4331
#5E4331
oklch(40.8% 0.047 54.7)
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 #2F4E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.027
- Dark Slate Gray #2F4F4F ΔE 0.029
- Charcoal #264653 ΔE 0.033
- Deep Teal #00555A ΔE 0.039
- Dark Teal #014D4E ΔE 0.047
- Charcoal Grey #3C4142 ΔE 0.054
- Petrol #005F6A ΔE 0.054
- YInMn Blue #415A77 ΔE 0.056
Use #2F4E5F 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.