#308DAF
Closest named color: Blue NCS (#118AB2). oklch(60.4% 0.099 226.6), rgb(48, 141, 175).
Aa
Black text reads best on this color (5.55:1).
About this color
#308DAF is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 60%, its chroma 0.099 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.018 away. Black text reads best on it, at 5.55:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.55:1 |
| White text | 3.78:1 |
Values
| HEX | #308DAF |
| RGB | rgb(48, 141, 175) |
| HSL | hsl(196, 57%, 44%) |
| OKLCH | oklch(60.4% 0.099 226.6) |
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 #308DAF | 3.78:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #308DAF | 5.55:1 | AA | Lc 39.1 | Non-text elements, placeholder text |
| #308DAF text on white | 3.78:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #308DAF text on black | 5.55:1 | AA | Lc -36.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C7DDE7
oklch(88.4% 0.027 226.8)
-
Step 300
300
#A0C8D9
oklch(81% 0.049 225.7)
-
Step 400
400
#6AABC6
oklch(70.8% 0.077 226.4)
-
Step 500
500 (this color)
#308DAF
oklch(60.4% 0.099 226.6)
-
Step 600
600
#007FA3
oklch(55.6% 0.107 226.4)
-
Step 700
700
#006B8A
oklch(49.2% 0.095 226.5)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#10485C
oklch(37.6% 0.065 226.9)
-
Step 950
950
#0C2A36
oklch(26.9% 0.042 227.8)
#308DAF 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) | #7B8AB1 | 0.074 |
| Deuteranopia (no green cones) | #697EAF | 0.064 |
| Tritanopia (no blue cones) | #009798 | 0.055 |
| Achromatopsia (no color) | #838383 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #308DAF
#308DAF
oklch(60.4% 0.099 226.6)
- #B26E4C
#B26E4C
oklch(60.5% 0.099 46.8)
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 #308DAF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.018
- Teal Blue #01889F ΔE 0.034
- Cool Blue #4984B8 ΔE 0.036
- Steel Blue #4682B4 ΔE 0.037
- Off Blue #5684AE ΔE 0.037
- Dusty Blue #5A86AD ΔE 0.037
- Teal Green #0A9396 ΔE 0.051
- Cerulean #457B9D ΔE 0.052
Use #308DAF 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.