#5998F5
Closest named color: Cornflower Blue (#6495ED). oklch(68% 0.153 258.1), rgb(89, 152, 245).
Aa
Black text reads best on this color (7.23:1).
About this color
#5998F5 is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.153 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.015 away. Black text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.23:1 |
| White text | 2.90:1 |
Values
| HEX | #5998F5 |
| RGB | rgb(89, 152, 245) |
| HSL | hsl(216, 89%, 65%) |
| OKLCH | oklch(68% 0.153 258.1) |
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 #5998F5 | 2.90:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #5998F5 | 7.23:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #5998F5 text on white | 2.90:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #5998F5 text on black | 7.23:1 | AAA | Lc -46.7 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C4DBFD
oklch(88.5% 0.053 258)
-
Step 300
300
#9AC3FE
oklch(80.9% 0.095 257.4)
-
Step 400
400 (this color)
#5998F5
oklch(68% 0.153 258.1)
-
Step 500
500
#3185FC
oklch(63% 0.195 258.1)
-
Step 600
600
#006CE8
oklch(55.6% 0.205 258)
-
Step 700
700
#005AC5
oklch(49.1% 0.183 258.1)
-
Step 800
800
#004AA3
oklch(42.8% 0.158 257.9)
-
Step 900
900
#0B3E83
oklch(37.6% 0.127 258.1)
-
Step 950
950
#09254D
oklch(27% 0.081 258.1)
#5998F5 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) | #6F9FF9 | 0.031 |
| Deuteranopia (no green cones) | #5991F3 | 0.018 |
| Tritanopia (no blue cones) | #00ADBB | 0.125 |
| Achromatopsia (no color) | #989898 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5998F5
#5998F5
oklch(68% 0.153 258.1)
- #C88B00
#C88B00
oklch(68% 0.142 77.6)
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 #5998F5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.015
- Chefchaouen Blue #4895EF ΔE 0.020
- Dark Sky Blue #448EE4 ΔE 0.041
- Soft Blue #6488EA ΔE 0.042
- Dodger Blue #1E90FF ΔE 0.049
- Periwinkle Blue #8F99FB ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.067
- Lavender Blue #8B88F8 ΔE 0.067
Use #5998F5 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.