#049DCF
Closest named color: Dark Sky Blue (#448EE4). oklch(65.2% 0.129 230), rgb(4, 157, 207).
Aa
Black text reads best on this color (6.72:1).
About this color
#049DCF is a medium-light, moderately saturated blue. In OKLCH its lightness is 65%, its chroma 0.129 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.062 away. Black text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #049DCF |
| RGB | rgb(4, 157, 207) |
| HSL | hsl(195, 96%, 41%) |
| OKLCH | oklch(65.2% 0.129 230) |
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 #049DCF | 3.12:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #049DCF | 6.72:1 | AA | Lc 46.5 | Large or bold text, headings |
| #049DCF text on white | 3.12:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #049DCF text on black | 6.72:1 | AA | Lc -44.2 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100
#DEECF4
oklch(93.5% 0.018 232.5)
-
Step 200
200
#C3DEEC
oklch(88.5% 0.035 230.3)
-
Step 300
300
#97C9E2
oklch(80.9% 0.063 230.1)
-
Step 400
400
#55ACD4
oklch(70.7% 0.102 230.5)
-
Step 500
500 (this color)
#049DCF
oklch(65.2% 0.129 230)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#004862
oklch(37.7% 0.076 230.8)
-
Step 950
950
#002B3B
oklch(27% 0.053 228.8)
#049DCF 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) | #839BD1 | 0.088 |
| Deuteranopia (no green cones) | #6B8BCE | 0.073 |
| Tritanopia (no blue cones) | #00ABAE | 0.074 |
| Achromatopsia (no color) | #929292 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #049DCF
#049DCF
oklch(65.2% 0.129 230)
- #CD7641
#CD7641
oklch(65.2% 0.128 50.2)
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 #049DCF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.062
- Water Blue #0E87CC ΔE 0.062
- Blue NCS #118AB2 ΔE 0.062
- Turquoise Blue #06B1C4 ΔE 0.065
- Chefchaouen Blue #4895EF ΔE 0.065
- Faded Blue #658CBB ΔE 0.066
- Cool Blue #4984B8 ΔE 0.071
- Dusty Blue #5A86AD ΔE 0.076
Use #049DCF 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.