#187299
Closest named color: Ocean Blue (#03719C). oklch(52.1% 0.1 233), rgb(24, 114, 153).
Aa
White text reads best on this color (5.37:1).
About this color
#187299 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.100 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.009 away. White text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #187299 |
| RGB | rgb(24, 114, 153) |
| HSL | hsl(198, 73%, 35%) |
| OKLCH | oklch(52.1% 0.1 233) |
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 #187299 | 5.37:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #187299 | 3.90:1 | AA large text | Lc 27.7 | Dividers and decoration only |
| #187299 text on white | 5.37:1 | AA | Lc 76.4 | Fine for body text |
| #187299 text on black | 3.90:1 | AA large text | Lc -25.4 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A2C7DB
oklch(80.9% 0.049 231.7)
-
Step 400
400
#6EA9C9
oklch(70.6% 0.077 233.1)
-
Step 500
500
#4393BB
oklch(63% 0.098 233.1)
-
Step 600
600
#1A7DA8
oklch(55.6% 0.108 233.3)
-
Step 700
700 (this color)
#187299
oklch(52.1% 0.1 233)
-
Step 800
800
#0E5675
oklch(42.7% 0.083 233.2)
-
Step 900
900
#17475E
oklch(37.7% 0.064 233.1)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#187299 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) | #5F719B | 0.064 |
| Deuteranopia (no green cones) | #4E6598 | 0.054 |
| Tritanopia (no blue cones) | #007C7F | 0.059 |
| Achromatopsia (no color) | #6A6A6A | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #187299
#187299
oklch(52.1% 0.1 233)
- #95572D
#95572D
oklch(52% 0.1 52.8)
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 #187299, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.009
- Sea Blue #047495 ΔE 0.011
- Muted Blue #3B719F ΔE 0.026
- Ocean #017B92 ΔE 0.032
- Peacock Blue #016795 ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.036
- Nice Blue #107AB0 ΔE 0.039
- Dull Blue #49759C ΔE 0.040
Use #187299 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.