#305E6F
Closest named color: YInMn Blue (#415A77). oklch(45.7% 0.057 224.4), rgb(48, 94, 111).
Aa
White text reads best on this color (7.10:1).
About this color
#305E6F is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.057 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.028 away. White text reads best on it, at 7.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.95:1 |
| White text | 7.10:1 |
Values
| HEX | #305E6F |
| RGB | rgb(48, 94, 111) |
| HSL | hsl(196, 40%, 31%) |
| OKLCH | oklch(45.7% 0.057 224.4) |
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 #305E6F | 7.10:1 | AAA | Lc -89.4 | Fine for body text |
| Black text on #305E6F | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #305E6F text on white | 7.10:1 | AAA | Lc 84.5 | Fine for body text |
| #305E6F text on black | 2.95:1 | Fails | Lc -17.5 | 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 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
#CDDCE2
oklch(88.5% 0.018 223.6)
-
Step 300
300
#AAC6D1
oklch(80.9% 0.034 223.5)
-
Step 400
400
#7CA8BA
oklch(70.6% 0.054 225.1)
-
Step 500
500
#5993A9
oklch(63.2% 0.069 224.3)
-
Step 600
600
#3D7D94
oklch(55.7% 0.074 224.1)
-
Step 700
700
#2E697E
oklch(49.1% 0.069 224.4)
-
Step 800
800 (this color)
#305E6F
oklch(45.7% 0.057 224.4)
-
Step 900
900
#254753
oklch(37.7% 0.045 223)
-
Step 950
950
#162931
oklch(26.8% 0.029 226.7)
#305E6F 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) | #555C70 | 0.046 |
| Deuteranopia (no green cones) | #4B556F | 0.040 |
| Tritanopia (no blue cones) | #006363 | 0.040 |
| Achromatopsia (no color) | #585858 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #305E6F
#305E6F
oklch(45.7% 0.057 224.4)
- #724D3C
#724D3C
oklch(45.7% 0.057 45.5)
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 #305E6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.028
- Petrol #005F6A ΔE 0.029
- Dark Aqua #05696B ΔE 0.042
- Light Navy Blue #2E5A88 ΔE 0.047
- Slate #516572 ΔE 0.047
- Denim #3B638C ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.051
- Dusty Grape #545775 ΔE 0.051
Use #305E6F 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.