#2B4867
Closest named color: Dark Grey Blue (#29465B). oklch(39.4% 0.063 251.2), rgb(43, 72, 103).
Aa
White text reads best on this color (9.43:1).
About this color
#2B4867 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.063 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.021 away. White text reads best on it, at 9.43:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #2B4867 |
| RGB | rgb(43, 72, 103) |
| HSL | hsl(211, 41%, 29%) |
| OKLCH | oklch(39.4% 0.063 251.2) |
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 #2B4867 | 9.43:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #2B4867 | 2.22:1 | Fails | Lc 12.3 | Not readable |
| #2B4867 text on white | 9.43:1 | AAA | Lc 91.7 | Preferred for body text |
| #2B4867 text on black | 2.22:1 | Fails | Lc -10.7 | 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
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3DF
oklch(80.8% 0.048 252.4)
-
Step 400
400
#7DA4CF
oklch(70.6% 0.076 251.4)
-
Step 500
500
#5B8DC3
oklch(63.1% 0.098 251.4)
-
Step 600
600
#4076AF
oklch(55.5% 0.106 251.4)
-
Step 700
700
#326396
oklch(49% 0.098 251.3)
-
Step 800
800
#2A517A
oklch(42.6% 0.082 251.3)
-
Step 900
900 (this color)
#2B4867
oklch(39.4% 0.063 251.2)
-
Step 950
950
#172839
oklch(27.1% 0.039 249.5)
#2B4867 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) | #3B4968 | 0.021 |
| Deuteranopia (no green cones) | #344366 | 0.018 |
| Tritanopia (no blue cones) | #044F53 | 0.055 |
| Achromatopsia (no color) | #464646 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4867
#2B4867
oklch(39.4% 0.063 251.2)
- #5B401C
#5B401C
oklch(39.4% 0.063 71.9)
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 #2B4867, 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 0.047
- Light Navy #155084 ΔE 0.050
- Deep Sea Blue #015482 ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.053
- Deep Teal #00555A ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.059
Use #2B4867 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.