#30758E
Closest named color: Sea Blue (#047495). oklch(52.9% 0.079 225.2), rgb(48, 117, 142).
Aa
White text reads best on this color (5.17:1).
About this color
#30758E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.079 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.022 away. White text reads best on it, at 5.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.06:1 |
| White text | 5.17:1 |
Values
| HEX | #30758E |
| RGB | rgb(48, 117, 142) |
| HSL | hsl(196, 49%, 37%) |
| OKLCH | oklch(52.9% 0.079 225.2) |
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 #30758E | 5.17:1 | AA | Lc -80.8 | Fine for body text |
| Black text on #30758E | 4.06:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #30758E text on white | 5.17:1 | AA | Lc 75.4 | Fine for body text |
| #30758E text on black | 4.06:1 | AA large text | Lc -26.3 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE3
oklch(88.5% 0.02 225.7)
-
Step 300
300
#A9C6D2
oklch(80.9% 0.036 224.7)
-
Step 400
400
#7AA9BC
oklch(70.8% 0.057 224.9)
-
Step 500
500
#5693AB
oklch(63.1% 0.073 225.4)
-
Step 600
600 (this color)
#30758E
oklch(52.9% 0.079 225.2)
-
Step 700
700
#2A6980
oklch(49% 0.073 225.4)
-
Step 800
800
#255668
oklch(42.7% 0.06 225)
-
Step 900
900
#234755
oklch(37.7% 0.048 225.6)
-
Step 950
950
#152A32
oklch(27.1% 0.031 224.6)
#30758E 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) | #67738F | 0.060 |
| Deuteranopia (no green cones) | #5A698E | 0.053 |
| Tritanopia (no blue cones) | #007C7D | 0.045 |
| Achromatopsia (no color) | #6D6D6D | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #30758E
#30758E
oklch(52.9% 0.079 225.2)
- #925D44
#925D44
oklch(53.1% 0.079 45.8)
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 #30758E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.022
- Ocean #017B92 ΔE 0.023
- Metallic Blue #4F738E ΔE 0.029
- Dull Blue #49759C ΔE 0.034
- Ocean Blue #03719C ΔE 0.034
- Muted Blue #3B719F ΔE 0.034
- Deep Aqua #08787F ΔE 0.035
- Cerulean #457B9D ΔE 0.035
Use #30758E 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.