#2B5C7B
Closest named color: YInMn Blue (#415A77). oklch(45.5% 0.073 239), rgb(43, 92, 123).
Aa
White text reads best on this color (7.19:1).
About this color
#2B5C7B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.073 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.023 away. White text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #2B5C7B |
| RGB | rgb(43, 92, 123) |
| HSL | hsl(203, 48%, 33%) |
| OKLCH | oklch(45.5% 0.073 239) |
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 #2B5C7B | 7.19:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #2B5C7B | 2.91:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #2B5C7B text on white | 7.19:1 | AAA | Lc 84.8 | Fine for body text |
| #2B5C7B text on black | 2.91:1 | Fails | Lc -17.2 | 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
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#78A7C7
oklch(70.7% 0.069 238.8)
-
Step 500
500
#5491B9
oklch(63.2% 0.088 239)
-
Step 600
600
#367AA5
oklch(55.5% 0.096 239.5)
-
Step 700
700
#28678D
oklch(49.1% 0.088 238.8)
-
Step 800
800 (this color)
#2B5C7B
oklch(45.5% 0.073 239)
-
Step 900
900
#22465D
oklch(37.8% 0.057 238.8)
-
Step 950
950
#152936
oklch(27% 0.036 238.5)
#2B5C7B 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) | #4E5C7C | 0.041 |
| Deuteranopia (no green cones) | #43547A | 0.033 |
| Tritanopia (no blue cones) | #006467 | 0.053 |
| Achromatopsia (no color) | #575757 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B5C7B
#2B5C7B
oklch(45.5% 0.073 239)
- #754C2A
#754C2A
oklch(45.5% 0.074 59)
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 #2B5C7B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.024
- Denim #3B638C ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.040
- Petrol #005F6A ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.044
- Dusk Blue #26538D ΔE 0.045
- Peacock Blue #016795 ΔE 0.047
Use #2B5C7B 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.