#015A98
Closest named color: Dusk Blue (#26538D). oklch(45.7% 0.124 248.4), rgb(1, 90, 152).
Aa
White text reads best on this color (7.19:1).
About this color
#015A98 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.124 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.027 away. White text reads best on it, at 7.19:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.91:1 |
| White text | 7.19:1 |
Values
| HEX | #015A98 |
| RGB | rgb(1, 90, 152) |
| HSL | hsl(205, 99%, 30%) |
| OKLCH | oklch(45.7% 0.124 248.4) |
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 #015A98 | 7.19:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #015A98 | 2.91:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #015A98 text on white | 7.19:1 | AAA | Lc 84.4 | Fine for body text |
| #015A98 text on black | 2.91:1 | Fails | Lc -17.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF3
oklch(88.5% 0.04 248.3)
-
Step 300
300
#9CC5EE
oklch(80.8% 0.073 248.7)
-
Step 400
400
#63A6E5
oklch(70.7% 0.115 248.4)
-
Step 500
500
#2F8EDE
oklch(63.1% 0.148 248.5)
-
Step 600
600
#0077C6
oklch(55.6% 0.15 248.2)
-
Step 700
700
#0064A8
oklch(49.2% 0.133 248.3)
-
Step 800
800 (this color)
#015A98
oklch(45.7% 0.124 248.4)
-
Step 900
900
#094472
oklch(37.8% 0.096 248.5)
-
Step 950
950
#092843
oklch(27% 0.062 248.7)
#015A98 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) | #3B5E9A | 0.041 |
| Deuteranopia (no green cones) | #235297 | 0.025 |
| Tritanopia (no blue cones) | #006971 | 0.089 |
| Achromatopsia (no color) | #575757 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #015A98
#015A98
oklch(45.7% 0.124 248.4)
- #7B4B00
#7B4B00
oklch(45.8% 0.1 68.5)
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 #015A98, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.027
- Light Navy Blue #2E5A88 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.038
- Denim Blue #3B5B92 ΔE 0.039
- Light Navy #155084 ΔE 0.040
- Peacock Blue #016795 ΔE 0.040
- Cobalt #1E488F ΔE 0.050
- Denim #3B638C ΔE 0.054
Use #015A98 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.