#317C68
Closest named color: Bluegreen (#017A79). oklch(53.3% 0.081 172.7), rgb(49, 124, 104).
Aa
White text reads best on this color (4.98:1).
About this color
#317C68 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.081 and its hue 173°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.033 away. White text reads best on it, at 4.98:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.21:1 |
| White text | 4.98:1 |
Values
| HEX | #317C68 |
| RGB | rgb(49, 124, 104) |
| HSL | hsl(164, 43%, 34%) |
| OKLCH | oklch(53.3% 0.081 172.7) |
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 #317C68 | 4.98:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #317C68 | 4.21:1 | AA large text | Lc 29.8 | Dividers and decoration only |
| #317C68 text on white | 4.98:1 | AA | Lc 74.3 | Content text, not long reading |
| #317C68 text on black | 4.21:1 | AA large text | Lc -27.5 | 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 600.
-
Step 50
50
#F2F6F5
oklch(97% 0.004 179.7)
-
Step 100
100
#E3ECE9
oklch(93.5% 0.01 174.3)
-
Step 200
200
#CCDED8
oklch(88.5% 0.021 173.9)
-
Step 300
300
#AAC9BE
oklch(81% 0.037 171.9)
-
Step 400
400
#7BAD9D
oklch(70.7% 0.058 172.7)
-
Step 500
500
#569885
oklch(63% 0.074 173.3)
-
Step 600
600 (this color)
#317C68
oklch(53.3% 0.081 172.7)
-
Step 700
700
#2A6F5C
oklch(49.2% 0.076 172)
-
Step 800
800
#245A4B
oklch(42.6% 0.063 172.3)
-
Step 900
900
#234A3F
oklch(37.7% 0.049 173.1)
-
Step 950
950
#162B25
oklch(26.9% 0.03 173.8)
#317C68 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) | #787467 | 0.084 |
| Deuteranopia (no green cones) | #6D6C69 | 0.080 |
| Tritanopia (no blue cones) | #007D76 | 0.026 |
| Achromatopsia (no color) | #707070 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #317C68
#317C68
oklch(53.3% 0.081 172.7)
- #915971
#915971
oklch(53.4% 0.08 352.9)
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 #317C68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.033
- Teal #008080 ΔE 0.036
- Dark Aquamarine #017371 ΔE 0.043
- Deep Aqua #08787F ΔE 0.045
- Deep Turquoise #017374 ΔE 0.045
- Dark Cyan #008B8B ΔE 0.058
- Dark Sage #598556 ΔE 0.058
- Sea Green #2E8B57 ΔE 0.060
Use #317C68 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.