#34718E
Closest named color: Sea Blue (#047495). oklch(52.1% 0.078 231.5), rgb(52, 113, 142).
Aa
White text reads best on this color (5.38:1).
About this color
#34718E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.078 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.023 away. White text reads best on it, at 5.38:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.89:1 |
| White text | 5.38:1 |
Values
| HEX | #34718E |
| RGB | rgb(52, 113, 142) |
| HSL | hsl(199, 46%, 38%) |
| OKLCH | oklch(52.1% 0.078 231.5) |
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 #34718E | 5.38:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #34718E | 3.89:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #34718E text on white | 5.38:1 | AA | Lc 76.6 | Fine for body text |
| #34718E text on black | 3.89:1 | AA large text | Lc -25.1 | 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 700.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#A9C6D5
oklch(81% 0.038 230.3)
-
Step 400
400
#7AA8C0
oklch(70.7% 0.06 231.4)
-
Step 500
500
#5692B0
oklch(63.1% 0.077 231.5)
-
Step 600
600
#397C9C
oklch(55.7% 0.084 231.7)
-
Step 700
700 (this color)
#34718E
oklch(52.1% 0.078 231.5)
-
Step 800
800
#25556C
oklch(42.7% 0.064 231.8)
-
Step 900
900
#234658
oklch(37.6% 0.051 232.8)
-
Step 950
950
#152933
oklch(26.9% 0.032 231.4)
#34718E 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) | #63708F | 0.053 |
| Deuteranopia (no green cones) | #56668E | 0.046 |
| Tritanopia (no blue cones) | #00797B | 0.051 |
| Achromatopsia (no color) | #6A6A6A | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #34718E
#34718E
oklch(52.1% 0.078 231.5)
- #8D5C3E
#8D5C3E
oklch(52.1% 0.078 51.8)
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 #34718E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.023
- Metallic Blue #4F738E ΔE 0.029
- Muted Blue #3B719F ΔE 0.029
- Ocean Blue #03719C ΔE 0.030
- Ocean #017B92 ΔE 0.033
- Dull Blue #49759C ΔE 0.033
- Cerulean #457B9D ΔE 0.040
- Denim #3B638C ΔE 0.041
Use #34718E 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.