#315D69
Closest named color: Petrol (#005F6A). oklch(45.2% 0.052 217.6), rgb(49, 93, 105).
Aa
White text reads best on this color (7.24:1).
About this color
#315D69 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.052 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.027 away. White text reads best on it, at 7.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.90:1 |
| White text | 7.24:1 |
Values
| HEX | #315D69 |
| RGB | rgb(49, 93, 105) |
| HSL | hsl(193, 36%, 30%) |
| OKLCH | oklch(45.2% 0.052 217.6) |
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 #315D69 | 7.24:1 | AAA | Lc -89.9 | Fine for body text |
| Black text on #315D69 | 2.90:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #315D69 text on white | 7.24:1 | AAA | Lc 85.0 | Fine for body text |
| #315D69 text on black | 2.90:1 | Fails | Lc -17.0 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#ACC6CE
oklch(81% 0.03 218.3)
-
Step 400
400
#7EA9B5
oklch(70.8% 0.049 216.8)
-
Step 500
500
#5C93A3
oklch(63.1% 0.063 218.3)
-
Step 600
600
#407D8E
oklch(55.6% 0.068 218.2)
-
Step 700
700
#316A78
oklch(49.2% 0.063 216.1)
-
Step 800
800 (this color)
#315D69
oklch(45.2% 0.052 217.6)
-
Step 900
900
#274750
oklch(37.7% 0.041 217.9)
-
Step 950
950
#172A2F
oklch(27.1% 0.026 216.3)
#315D69 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) | #555B6A | 0.046 |
| Deuteranopia (no green cones) | #4D5469 | 0.042 |
| Tritanopia (no blue cones) | #0F6161 | 0.031 |
| Achromatopsia (no color) | #575757 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #315D69
#315D69
oklch(45.2% 0.052 217.6)
- #704C41
#704C41
oklch(45.3% 0.052 37.7)
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 #315D69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.027
- YInMn Blue #415A77 ΔE 0.034
- Dark Aqua #05696B ΔE 0.041
- Dark Green Blue #1F6357 ΔE 0.044
- Deep Teal #00555A ΔE 0.049
- Slate #516572 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.054
- Dusty Grape #545775 ΔE 0.054
Use #315D69 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.