#2F5C71
Closest named color: YInMn Blue (#415A77). oklch(45.2% 0.06 230.3), rgb(47, 92, 113).
Aa
White text reads best on this color (7.26:1).
About this color
#2F5C71 is a medium-dark, muted blue. In OKLCH its lightness is 45%, its chroma 0.060 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.024 away. White text reads best on it, at 7.26:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.89:1 |
| White text | 7.26:1 |
Values
| HEX | #2F5C71 |
| RGB | rgb(47, 92, 113) |
| HSL | hsl(199, 41%, 31%) |
| OKLCH | oklch(45.2% 0.06 230.3) |
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 #2F5C71 | 7.26:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #2F5C71 | 2.89:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #2F5C71 text on white | 7.26:1 | AAA | Lc 85.1 | Fine for body text |
| #2F5C71 text on black | 2.89:1 | Fails | Lc -16.9 | 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
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CDDCE4
oklch(88.6% 0.02 230.7)
-
Step 300
300
#AAC5D3
oklch(80.8% 0.035 230.3)
-
Step 400
400
#7CA8BD
oklch(70.7% 0.056 229)
-
Step 500
500
#5992AD
oklch(63.1% 0.072 229.9)
-
Step 600
600
#3D7C99
oklch(55.7% 0.079 230.3)
-
Step 700
700
#2F6882
oklch(49.1% 0.072 230.5)
-
Step 800
800 (this color)
#2F5C71
oklch(45.2% 0.06 230.3)
-
Step 900
900
#254656
oklch(37.6% 0.047 230.9)
-
Step 950
950
#172932
oklch(27% 0.029 231)
#2F5C71 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) | #515B72 | 0.042 |
| Deuteranopia (no green cones) | #485471 | 0.036 |
| Tritanopia (no blue cones) | #006263 | 0.043 |
| Achromatopsia (no color) | #575757 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5C71
#2F5C71
oklch(45.2% 0.06 230.3)
- #714C37
#714C37
oklch(45.2% 0.06 50.3)
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 #2F5C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.024
- Petrol #005F6A ΔE 0.031
- Light Navy Blue #2E5A88 ΔE 0.041
- Denim #3B638C ΔE 0.049
- Dark Aqua #05696B ΔE 0.049
- Dusty Grape #545775 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.051
- Slate #516572 ΔE 0.052
Use #2F5C71 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.