#315E71
Closest named color: YInMn Blue (#415A77). oklch(45.8% 0.058 227.6), rgb(49, 94, 113).
Aa
White text reads best on this color (7.07:1).
About this color
#315E71 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.058 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.025 away. White text reads best on it, at 7.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.07:1 |
Values
| HEX | #315E71 |
| RGB | rgb(49, 94, 113) |
| HSL | hsl(198, 40%, 32%) |
| OKLCH | oklch(45.8% 0.058 227.6) |
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 #315E71 | 7.07:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #315E71 | 2.97:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #315E71 text on white | 7.07:1 | AAA | Lc 84.4 | Fine for body text |
| #315E71 text on black | 2.97:1 | Fails | Lc -17.6 | 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
#CDDCE3
oklch(88.5% 0.019 227.3)
-
Step 300
300
#ABC6D2
oklch(81% 0.034 226.4)
-
Step 400
400
#7DA8BB
oklch(70.7% 0.054 227)
-
Step 500
500
#5A92AB
oklch(63.1% 0.07 228.3)
-
Step 600
600
#3E7C96
oklch(55.6% 0.075 227.8)
-
Step 700
700
#2F6980
oklch(49.2% 0.07 226.9)
-
Step 800
800 (this color)
#315E71
oklch(45.8% 0.058 227.6)
-
Step 900
900
#264655
oklch(37.6% 0.046 229.9)
-
Step 950
950
#172931
oklch(26.9% 0.028 227.9)
#315E71 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) | #545C72 | 0.043 |
| Deuteranopia (no green cones) | #4B5571 | 0.039 |
| Tritanopia (no blue cones) | #016464 | 0.043 |
| Achromatopsia (no color) | #585858 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315E71
#315E71
oklch(45.8% 0.058 227.6)
- #734D3B
#734D3B
oklch(45.8% 0.059 46.2)
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 #315E71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.025
- Petrol #005F6A ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.043
- Dark Aqua #05696B ΔE 0.044
- Slate #516572 ΔE 0.046
- Denim #3B638C ΔE 0.047
- Dusty Grape #545775 ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.054
Use #315E71 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.