#2B617B
Closest named color: YInMn Blue (#415A77). oklch(46.8% 0.071 231.9), rgb(43, 97, 123).
Aa
White text reads best on this color (6.77:1).
About this color
#2B617B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.071 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.028 away. White text reads best on it, at 6.77:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 3.09:1 |
| White text | 6.77:1 |
Values
| HEX | #2B617B |
| RGB | rgb(43, 97, 123) |
| HSL | hsl(200, 48%, 33%) |
| OKLCH | oklch(46.8% 0.071 231.9) |
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 #2B617B | 6.77:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #2B617B | 3.09:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #2B617B text on white | 6.77:1 | AA | Lc 83.2 | Fine for body text |
| #2B617B text on black | 3.09:1 | AA large text | Lc -18.8 | 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 700.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBEF
oklch(93.6% 0.009 232.4)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#ABC5D3
oklch(80.8% 0.034 231.3)
-
Step 400
400
#7EA7BD
oklch(70.6% 0.055 231.9)
-
Step 500
500
#5C91AD
oklch(63% 0.07 232.5)
-
Step 600
600
#417B98
oklch(55.6% 0.076 232.1)
-
Step 700
700 (this color)
#2B617B
oklch(46.8% 0.071 231.9)
-
Step 800
800
#2A556A
oklch(42.8% 0.059 231.6)
-
Step 900
900
#274656
oklch(37.7% 0.046 232.3)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#2B617B 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) | #54607C | 0.047 |
| Deuteranopia (no green cones) | #49587B | 0.040 |
| Tritanopia (no blue cones) | #00686A | 0.046 |
| Achromatopsia (no color) | #5B5B5B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B617B
#2B617B
oklch(46.8% 0.071 231.9)
- #7A4E34
#7A4E34
oklch(46.7% 0.071 50.9)
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 #2B617B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.028
- Denim #3B638C ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Petrol #005F6A ΔE 0.038
- Peacock Blue #016795 ΔE 0.043
- Dark Aqua #05696B ΔE 0.046
- Slate #516572 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.049
Use #2B617B 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.