#2B5973
Closest named color: YInMn Blue (#415A77). oklch(44.3% 0.066 235.7), rgb(43, 89, 115).
Aa
White text reads best on this color (7.55:1).
About this color
#2B5973 is a dark, muted blue. In OKLCH its lightness is 44%, its chroma 0.066 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.026 away. White text reads best on it, at 7.55:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.77:1 |
| White text | 7.55:1 |
Values
| HEX | #2B5973 |
| RGB | rgb(43, 89, 115) |
| HSL | hsl(202, 46%, 31%) |
| OKLCH | oklch(44.3% 0.066 235.7) |
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 #2B5973 | 7.55:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #2B5973 | 2.77:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #2B5973 text on white | 7.55:1 | AAA | Lc 86.1 | Fine for body text |
| #2B5973 text on black | 2.77:1 | Fails | Lc -16.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#AAC5D7
oklch(80.9% 0.039 237.2)
-
Step 400
400
#7BA7C2
oklch(70.6% 0.062 235.7)
-
Step 500
500
#5891B3
oklch(63.1% 0.079 236.1)
-
Step 600
600
#3B7B9F
oklch(55.6% 0.086 235.9)
-
Step 700
700
#2D6788
oklch(49% 0.08 236.6)
-
Step 800
800 (this color)
#2B5973
oklch(44.3% 0.066 235.7)
-
Step 900
900
#244659
oklch(37.7% 0.051 234.9)
-
Step 950
950
#162934
oklch(27% 0.032 235.1)
#2B5973 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) | #4D5874 | 0.041 |
| Deuteranopia (no green cones) | #435173 | 0.035 |
| Tritanopia (no blue cones) | #006062 | 0.047 |
| Achromatopsia (no color) | #545454 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5973
#2B5973
oklch(44.3% 0.066 235.7)
- #70492E
#70492E
oklch(44.3% 0.067 54.8)
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 #2B5973, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.026
- Petrol #005F6A ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.035
- Deep Sea Blue #015482 ΔE 0.040
- Light Navy #155084 ΔE 0.048
- Denim #3B638C ΔE 0.051
- Dusk Blue #26538D ΔE 0.051
- Dusty Grape #545775 ΔE 0.051
Use #2B5973 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.