#179EEC
Closest named color: Chefchaouen Blue (#4895EF). oklch(67.1% 0.155 242.5), rgb(23, 158, 236).
Aa
Black text reads best on this color (7.13:1).
About this color
#179EEC is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.155 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.032 away. Black text reads best on it, at 7.13:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.155) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.13:1 |
| White text | 2.94:1 |
Values
| HEX | #179EEC |
| RGB | rgb(23, 158, 236) |
| HSL | hsl(202, 85%, 51%) |
| OKLCH | oklch(67.1% 0.155 242.5) |
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 #179EEC | 2.94:1 | Fails | Lc -60.6 | Content text, not long reading |
| Black text on #179EEC | 7.13:1 | AAA | Lc 48.7 | Large or bold text, headings |
| #179EEC text on white | 2.94:1 | Fails | Lc 55.3 | Large or bold text, headings |
| #179EEC text on black | 7.13:1 | AAA | Lc -46.5 | Large or bold text, headings |
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 400.
-
Step 50
50
#EEF7FE
oklch(97.1% 0.013 241)
-
Step 100
100
#DAEDFC
oklch(93.7% 0.029 241.6)
-
Step 200
200
#BBDEFA
oklch(88.4% 0.054 242.4)
-
Step 300
300
#87C8FA
oklch(80.8% 0.097 242.5)
-
Step 400
400 (this color)
#179EEC
oklch(67.1% 0.155 242.5)
-
Step 500
500
#0091DC
oklch(63% 0.151 242.6)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669D
oklch(49% 0.118 242.7)
-
Step 800
800
#005482
oklch(42.8% 0.102 242.4)
-
Step 900
900
#00466D
oklch(37.8% 0.09 242.2)
-
Step 950
950
#002943
oklch(27% 0.065 242.6)
#179EEC 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) | #78A0EF | 0.070 |
| Deuteranopia (no green cones) | #5C8EEB | 0.054 |
| Tritanopia (no blue cones) | #00B1BA | 0.104 |
| Achromatopsia (no color) | #969696 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #179EEC
#179EEC
oklch(67.1% 0.155 242.5)
- #D67C00
#D67C00
oklch(67% 0.154 62.5)
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 #179EEC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.032
- Dark Sky Blue #448EE4 ΔE 0.044
- Cornflower Blue #6495ED ΔE 0.051
- Dodger Blue #1E90FF ΔE 0.051
- Soft Blue #6488EA ΔE 0.070
- Water Blue #0E87CC ΔE 0.074
- Faded Blue #658CBB ΔE 0.085
- Deep Sky Blue #00BFFF ΔE 0.089
Use #179EEC 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.