#2B5673
Closest named color: YInMn Blue (#415A77). oklch(43.6% 0.068 240.3), rgb(43, 86, 115).
Aa
White text reads best on this color (7.83:1).
About this color
#2B5673 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.068 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.030 away. White text reads best on it, at 7.83:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.68:1 |
| White text | 7.83:1 |
Values
| HEX | #2B5673 |
| RGB | rgb(43, 86, 115) |
| HSL | hsl(204, 46%, 31%) |
| OKLCH | oklch(43.6% 0.068 240.3) |
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 #2B5673 | 7.83:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #2B5673 | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #2B5673 text on white | 7.83:1 | AAA | Lc 87.0 | Fine for body text |
| #2B5673 text on black | 2.68:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#AAC5D8
oklch(80.9% 0.04 238.7)
-
Step 400
400
#7DA6C5
oklch(70.7% 0.064 241.4)
-
Step 500
500
#5A90B6
oklch(63.1% 0.081 240.4)
-
Step 600
600
#3E7AA2
oklch(55.7% 0.088 240.1)
-
Step 700
700
#30668B
oklch(49% 0.083 241.2)
-
Step 800
800 (this color)
#2B5673
oklch(43.6% 0.068 240.3)
-
Step 900
900
#26455B
oklch(37.7% 0.053 241)
-
Step 950
950
#172935
oklch(27.1% 0.033 238.8)
#2B5673 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) | #495674 | 0.036 |
| Deuteranopia (no green cones) | #3F4F72 | 0.029 |
| Tritanopia (no blue cones) | #005D60 | 0.051 |
| Achromatopsia (no color) | #525252 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5673
#2B5673
oklch(43.6% 0.068 240.3)
- #6D4828
#6D4828
oklch(43.6% 0.069 60.4)
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 #2B5673, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.030
- Light Navy Blue #2E5A88 ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.035
- Petrol #005F6A ΔE 0.041
- Light Navy #155084 ΔE 0.041
- Dusk Blue #26538D ΔE 0.047
- Dusk #4E5481 ΔE 0.052
- Deep Teal #00555A ΔE 0.053
Use #2B5673 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.