#2B4D67
Closest named color: Dark Grey Blue (#29465B). oklch(40.6% 0.059 243), rgb(43, 77, 103).
Aa
White text reads best on this color (8.89:1).
About this color
#2B4D67 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.059 and its hue 243°. 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 8.89:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.36:1 |
| White text | 8.89:1 |
Values
| HEX | #2B4D67 |
| RGB | rgb(43, 77, 103) |
| HSL | hsl(206, 41%, 29%) |
| OKLCH | oklch(40.6% 0.059 243) |
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 #2B4D67 | 8.89:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #2B4D67 | 2.36:1 | Fails | Lc 13.7 | Not readable |
| #2B4D67 text on white | 8.89:1 | AAA | Lc 90.3 | Preferred for body text |
| #2B4D67 text on black | 2.36:1 | Fails | Lc -12.0 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200
#CFDBE5
oklch(88.5% 0.019 243)
-
Step 300
300
#AEC4D6
oklch(80.9% 0.035 242.8)
-
Step 400
400
#83A5C1
oklch(70.7% 0.056 243.5)
-
Step 500
500
#638FB1
oklch(63.1% 0.07 242.4)
-
Step 600
600
#49799D
oklch(55.7% 0.077 242.3)
-
Step 700
700
#3A6586
oklch(49% 0.072 243.1)
-
Step 800
800 (this color)
#2B4D67
oklch(40.6% 0.059 243)
-
Step 900
900
#2B4558
oklch(37.8% 0.046 241.2)
-
Step 950
950
#1A2834
oklch(27% 0.03 245.1)
#2B4D67 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) | #424D68 | 0.030 |
| Deuteranopia (no green cones) | #3A4767 | 0.025 |
| Tritanopia (no blue cones) | #015356 | 0.049 |
| Achromatopsia (no color) | #4A4A4A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4D67
#2B4D67
oklch(40.6% 0.059 243)
- #604226
#604226
oklch(40.6% 0.059 62.9)
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 #2B4D67, 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
- Charcoal #264653 ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.044
- Deep Teal #00555A ΔE 0.047
- Deep Sea Blue #015482 ΔE 0.048
- Light Navy #155084 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.055
- Dark Teal #014D4E ΔE 0.055
Use #2B4D67 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.