#318DA1
Closest named color: Teal Blue (#01889F). oklch(59.8% 0.089 215.1), rgb(49, 141, 161).
Aa
Black text reads best on this color (5.45:1).
About this color
#318DA1 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.089 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Blue (#01889F), ΔE 0.025 away. Black text reads best on it, at 5.45:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Teal Blue (#01889F) |
| Black text | 5.45:1 |
| White text | 3.84:1 |
Values
| HEX | #318DA1 |
| RGB | rgb(49, 141, 161) |
| HSL | hsl(191, 53%, 41%) |
| OKLCH | oklch(59.8% 0.089 215.1) |
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 #318DA1 | 3.84:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #318DA1 | 5.45:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #318DA1 text on white | 3.84:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #318DA1 text on black | 5.45:1 | AA | Lc -36.0 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A1C8D2
oklch(80.8% 0.044 215.1)
-
Step 400
400
#6BACBC
oklch(70.7% 0.07 215.1)
-
Step 500
500 (this color)
#318DA1
oklch(59.8% 0.089 215.1)
-
Step 600
600
#068197
oklch(55.6% 0.097 215.4)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#025969
oklch(42.7% 0.075 215.6)
-
Step 900
900
#124955
oklch(37.6% 0.059 215.6)
-
Step 950
950
#0D2B32
oklch(27% 0.037 215.6)
#318DA1 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) | #7F89A2 | 0.080 |
| Deuteranopia (no green cones) | #6F7DA1 | 0.072 |
| Tritanopia (no blue cones) | #009493 | 0.038 |
| Achromatopsia (no color) | #828282 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #318DA1
#318DA1
oklch(59.8% 0.089 215.1)
- #AE6C5B
#AE6C5B
oklch(59.9% 0.089 35.2)
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 #318DA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Blue #01889F ΔE 0.025
- Teal Green #0A9396 ΔE 0.032
- Blue NCS #118AB2 ΔE 0.032
- Dark Cyan #008B8B ΔE 0.041
- Dusty Blue #5A86AD ΔE 0.047
- Off Blue #5684AE ΔE 0.048
- Dusty Teal #4C9085 ΔE 0.049
- Sea #3C9992 ΔE 0.050
Use #318DA1 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.