#2B4967
Closest named color: Dark Grey Blue (#29465B). oklch(39.6% 0.063 249.7), rgb(43, 73, 103).
Aa
White text reads best on this color (9.32:1).
About this color
#2B4967 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.063 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 9.32:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.25:1 |
| White text | 9.32:1 |
Values
| HEX | #2B4967 |
| RGB | rgb(43, 73, 103) |
| HSL | hsl(210, 41%, 29%) |
| OKLCH | oklch(39.6% 0.063 249.7) |
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 #2B4967 | 9.32:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #2B4967 | 2.25:1 | Fails | Lc 12.5 | Not readable |
| #2B4967 text on white | 9.32:1 | AAA | Lc 91.4 | Preferred for body text |
| #2B4967 text on black | 2.25:1 | Fails | Lc -10.9 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEA
oklch(88.5% 0.026 250)
-
Step 300
300
#AAC4DE
oklch(80.9% 0.046 248.4)
-
Step 400
400
#7DA5CE
oklch(70.8% 0.074 249.5)
-
Step 500
500
#5A8EC1
oklch(63.1% 0.095 249.1)
-
Step 600
600
#3F77AE
oklch(55.6% 0.105 249.8)
-
Step 700
700
#316495
oklch(49.1% 0.096 249.6)
-
Step 800
800
#295279
oklch(42.8% 0.08 249.1)
-
Step 900
900 (this color)
#2B4967
oklch(39.6% 0.063 249.7)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#2B4967 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) | #3D4A68 | 0.024 |
| Deuteranopia (no green cones) | #354466 | 0.018 |
| Tritanopia (no blue cones) | #035053 | 0.055 |
| Achromatopsia (no color) | #474747 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4967
#2B4967
oklch(39.6% 0.063 249.7)
- #5C401E
#5C401E
oklch(39.5% 0.062 69.6)
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 #2B4967, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.021
- Charcoal #264653 ΔE 0.035
- Twilight Blue #0A437A ΔE 0.049
- Light Navy #155084 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.051
- Deep Sea Blue #015482 ΔE 0.052
- Deep Teal #00555A ΔE 0.056
- Dark Teal #014D4E ΔE 0.059
Use #2B4967 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.