#10749C
Closest named color: Ocean Blue (#03719C). oklch(52.6% 0.103 232.3), rgb(16, 116, 156).
Aa
White text reads best on this color (5.24:1).
About this color
#10749C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.103 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.010 away. White text reads best on it, at 5.24:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #10749C |
| RGB | rgb(16, 116, 156) |
| HSL | hsl(197, 81%, 34%) |
| OKLCH | oklch(52.6% 0.103 232.3) |
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 #10749C | 5.24:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #10749C | 4.00:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #10749C text on white | 5.24:1 | AA | Lc 75.6 | Fine for body text |
| #10749C text on black | 4.00:1 | AA large text | Lc -26.1 | 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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DA
oklch(81% 0.047 231.1)
-
Step 400
400
#70A9C7
oklch(70.7% 0.074 232.2)
-
Step 500
500
#4693B9
oklch(63% 0.095 232.5)
-
Step 600
600 (this color)
#10749C
oklch(52.6% 0.103 232.3)
-
Step 700
700
#0E698E
oklch(49% 0.097 232.7)
-
Step 800
800
#125673
oklch(42.7% 0.08 232.1)
-
Step 900
900
#19475D
oklch(37.7% 0.062 232.6)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#10749C 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) | #60739E | 0.067 |
| Deuteranopia (no green cones) | #4E679B | 0.055 |
| Tritanopia (no blue cones) | #007F82 | 0.061 |
| Achromatopsia (no color) | #6C6C6C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #10749C
#10749C
oklch(52.6% 0.103 232.3)
- #99582C
#99582C
oklch(52.7% 0.104 52.5)
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 #10749C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.010
- Sea Blue #047495 ΔE 0.012
- Muted Blue #3B719F ΔE 0.027
- Ocean #017B92 ΔE 0.030
- Nice Blue #107AB0 ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
- Dull Blue #49759C ΔE 0.040
- Peacock Blue #016795 ΔE 0.040
Use #10749C 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.